They are part of cycle but they are independent stories

About to finish The word for world is forest, by Ursula K. LeGuin

It's sci-fi, about the clash between Earth colonizers on a world covered by a forest and the people already living there.

Beautifully written and super short. She's able to show a lot in basically 100 pages
So I cannot recommend it enough! She's just so good at depicting other societies and putting and anthropological point of view

Check The left hand of darkness too if this caught your interest